BMW G30 & G38 Sedan / G31 Touring 5 Series Semi-Closed Cold Air Intake System w/ Heat Shield & Ducting | 3.0L B58 Engine - M540i

Unleash the true performance of your BMW G30 / G31 / G38 540i with our Cold Air Intake System, engineered to maximize airflow, reduce heat soak, and sharpen throttle response.

The BMW B58 3.0L turbocharged inline-6 powers the 540i and is celebrated as one of BMW’s best modern engines, offering incredible tuning potential, smooth delivery, and durability. While powerful in stock form, the restrictive OEM airbox limits airflow and responsiveness. Our upgraded intake system replaces it with a high-flow filter, precision-fit heat shield, and high-temp silicone hose, ensuring your B58 receives the cold, dense air it needs for consistent and responsive power.

The semi-closed design sets it apart. Unlike fully open intakes that can suffer from heat soak, this system balances unrestricted airflow with shielding against engine bay heat, resulting in cooler intake temps, sharper midrange torque, and improved drivability — especially under tuned boost levels.

With a pre-cut MAF sensor slot and OEM mounting points, installation is seamless. On top of the performance gains, the intake delivers an enhanced driving experience with a deeper induction tone, amplified turbo spool, and a satisfying blow-off sound every time you accelerate.

Key Features

• High-flow intake design optimized for the B58 turbocharger
• Semi-closed housing + heat shield reduce heat soak for cooler intake temps
• High-temp silicone hose improves heat resistance & reliability under boost
• Pre-cut MAF sensor slot for plug-and-play installation
• Increases horsepower & torque (with further gains when tuned)
• Aggressive induction sound with turbo spool and blow-off acoustics
• Direct OEM fitment with factory mounting points
• Red performance filter adds a motorsport-inspired look to your engine bay

FITMENT: 

• G30 5 Series Sedan – M540i (B58)
• G31 5 Series Touring – M540i (B58)
• G38 5 Series Sedan LWB – M540i (B58, China-market / select regions)

Does Not Fit:

• Any non-B58 engines (like 520i/530i B48 or 520d/530d diesels).
• Any M550i / M5 trims (those use N63 or S63 V8, different intake design).

Engine Compatibility: B58B30 (3.0L turbocharged inline-6)

Please refer to the “Fitment” section in the product description for compatibility details.